http://jackman.stanford.edu/blog observations on politics, statistics and computing from Stanford, California Fri, 20 Nov 2009 00:47:39 +0000 http://backend.userland.com/rss092 en Not what you might think. Take the MNL model (with IIA etc) and add a probit link. It is odd that they would call that multinomial probit. Most people would understand "multinomial probit" as a model for multinomial outcomes with multivariate normal disturbances (in general, with non-zero ... http://jackman.stanford.edu/blog/?p=1451 A recent e-mail correspondent writes: I have a degree in applied statistics, and I'm really interested in the lectures notes you put on your website about Bayesian approaches and simulations. That's something i need to discover and it looks really rich and interesting. I also use R on a very regular ... http://jackman.stanford.edu/blog/?p=1445 Some graphs looking at the voting on the Stupak amendment. This roll call sliced up the Democrats pretty nicely. Thumbnails below link to PDFs. Democrats only in the 1st graph, looking at the relationship between the Ayes and Noes and Obama vote share in the representatives' respective ... http://jackman.stanford.edu/blog/?p=1431 And one more look at last night's vote, this time with each representative's estimated ideal point (based on the entire 111th House thus far) as the predictor, similar to what I did for the Coburn amendment in the Senate. Update: and yet another graphical rendering (click on the thumbnail for the ... http://jackman.stanford.edu/blog/?p=1422 Here is a quick look at how Democrats split on the House vote on the Affordable Health Care for America Act, as a (logistic) function of Obama vote in their district. Davis (AL-7) and Kucinch (OH-10) are the big "errors" among the "Noe" votes; Kucinch had been telegraphing his opposition to ... http://jackman.stanford.edu/blog/?p=1411 I did a little work on the Coburn amendment rollcall. The vanilla spatial voting model fits the roll call reasonably well; I use all 341 roll calls cast by the 111th U.S. Senate (at least as of this morning when I ran the analysis) to estimate the ideal points, ... http://jackman.stanford.edu/blog/?p=1395 UAL 915. No upgrade. 8D, aisle seat on an A320. Not a disaster... Although it is the 2nd time I've done that flight in 8 days. Light chop for much of the way after Denver, some mountain wave was coming off the Rockies as well. Flying the Modesto 3 ... http://jackman.stanford.edu/blog/?p=1390 The Coburn amendment to cut political science funding from the NSF was defeated yesterday. There were some interesting breaks across party lines on this one: McCaskill (D-MO) voted to kill, but the Republican MO senator voted the other way. A similar pattern in Nebraska. Evan Bayh voted to kill NSF ... http://jackman.stanford.edu/blog/?p=1389 Trips to DC usually start with a pre-dawn wakeup in California, screaming up the 101 to SFO ahead of the morning rush, mixing it up with perfumed/cologned business types in the security line, and discovering that you're 12th on an upgrade list 80 names long, with 2 seats remaining in ... http://jackman.stanford.edu/blog/?p=1387 I got some advance copies from the publisher. I've been on the road with some talks etc, found these waiting from me on my return to the office. It lives. http://jackman.stanford.edu/blog/?p=1380